/* Calculates a broker's commission */
#include <stdio.h>
int main(void)
{
    float commission, value;
    printf("Enter value of trade: ");
    scanf("%f", &value);
    if (value < 2500.00f)
        commission = 30.00f + .017f * value;
    else if (value < 6250.00f)
        commission = 56.00f + .0066f * value;
    else if (value < 20000.00f)
        commission = 76.00f + .0034f * value;
    else if (value < 50000.00f)
        commission = 100.00f + .0022f * value;
    else if (value < 500000.00f)
        commission = 155.00f + .0011f * value;
    else
        commission = 255.00f + .0009f* value;
    if (commission < 39.00f)
        commission = 39.00f;
    printf("Commission: $%.2f\n", commission);
    return 0;
}